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Northwest Africa 11888
Basic information Name: Northwest Africa 11888
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11888
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 307 g
Classification
  history:
Recommended:  Diogenite    [explanation]

This is 1 of 414 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 3 Aug 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11888 (NWA 11888)

(Northwest Africa)

Purchased: 2017

Classification: HED achondrite (Diogenite)

Physical characteristics: Dark stone. Cut surface reveals a dark gray interior with a variety of clasts up to cm.

Petrography: (J. Gattacceca, CEREGE) Unbrecciated igneous rock with dominant fractured pyroxene (typical size 500 μm) and plagioclase (to 200 μm). Other minerals: troilite, chromite, FeNi metal.

Geochemistry: Low-Ca pyroxene Fs25.9±3Wo2.5±0.4, FeO/MnO=30.0±1.8 (N=4). Plagioclase An86.6Ab12.9Or0.5 (N=2)

Classification: Diogenite

Specimens: 30.9 g and a polished section at CEREGE. Main mass with R. Lenssen.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco/Western Sahara
Date:P 2017
Mass (g):307
Pieces:1
Class:Diogenite
Weathering grade:minor
Ferrosilite (mol%):25.9±3 (N=4)
Wollastonite (mol%):2.5±0.4
Magnetic suscept.:3.32
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):30.9
Type spec location:CEREGE
Main mass:R. Lenssen
Comments:work name RL02; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Europole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 5 Apr 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6423 approved meteorites from (Northwest Africa) (plus 2023 unapproved names)

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